function xdeltanstCOMFn = deltanstCOMFn(x)
xdeltanstCOMFn = (-189275041409611493300686390153736048823781048436532382807930038143760 -  ...
  45490136201315500021499981561041943388705779440231764747986152302351121* ...
   x(1) -  ...
  47549392753452548461223702255746263133488311422094560809091381962555302* ...
   x(2) -  ...
  50932348527829827771404040156897160378890330390929817604546930449567502* ...
   x(3) +  ...
  35388448328739786501327199403748475543064584229639115509331140446817502* ...
   x(4) +  ...
  18631983833188036388980528328079952578715624023009654752309664866534702* ...
   x(5))/ ...
 45489348653408987506408805392150288264347761128293710937374335680725521 ...
;